Malicious PDF — malware analysis report

Static analysis result for SHA-256 5eef918d13738330…

MALICIOUS

PDF

46.6 KB Created: 2020-08-13 21:36:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1fe4fd9b09e77bf9b41487aae644c8c0 SHA-1: b47564855f130ea8ecaefe0690d7aec60bc55abc SHA-256: 5eef918d137383304f303dca16f1e29e0ea25334881979a5efe98ce8ff347e22
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links designed to appear as free downloads, but they redirect to a malicious URL (ttraff.cc). This technique is commonly used in phishing campaigns to trick users into visiting malicious sites. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=front+end+interview+questions+and+answers+pdf In PDF document text
    • http://suzod.joconet.com/uploads/1/3/0/8/130874330/2134242.pdfIn PDF document text
    • http://sosoradu.adamkk.com/uploads/1/3/1/1/131163658/xomipunibelujoji.pdfIn PDF document text
    • http://files.whipperwillridge.com/uploads/1/3/1/4/131437385/3be94ea8ce8be47.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/polonafebomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3550/8392/files/etude_assainissement.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/9764/0360/files/public_speaking_rubric_middle_school.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9910/3136/files/revemufadoxebuxoberakavat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/4349/9677/files/body_language_essentials_joe_navarro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6193/6290/files/5933888282.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9476/1877/files/denukudovujaburamiwawonus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9004/3285/files/7390775150.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7783/6703/files/37297093982.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4744/3865/files/fibotolenemufitekesogemin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2484/8795/files/speech_about_teachers_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6874/2040/files/gta_5_online_modding_ps3.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4723/7285/files/english_grammar_book_for_class_9_free_download.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000076ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76EF 5236 bytes
SHA-256: 75ab573a9dfddecd425d6c9262cdc15c8dd0a8eca7dc0e025435cb4f48480c19
font_01_sfnt_off000088e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88E2 10828 bytes
SHA-256: 75c1582af11b6022c7640ccd28c7489172df03e0fb41069f94346389128a6bca

Open this report in the interactive analyzer, or submit your own file for analysis.